Multi-component reaction for the preparation of 1,5-disubstituted 1,2,3-triazoles by in-situ generation of azides and nickel-catalyzed azide-alkyne cycloaddition
An efficient one-pot procedure combining bromide conversion into azide followed by NiAAC for the preparation of 1,5-disubstituted 1,2,3-triazoles has been developed. This procedure prevents the use of isolated azides, which are insufficiently commercially available and could be potentially unstable and difficult to handle. Moreover, this one-pot method tolerates a broad range of functional moieties
Synthesis of d-fructose conjugated ligands via C6 and C1 and their corresponding [Ru(bpy)2(L)]Cl2 complexes
作者:Michael Pröhl、Pascal D. Moser、Justyna A. Czaplewska、Patrick Hoffmann、Tanja Buś、Anja Traeger、Helmar Goerls、Ulrich S. Schubert、Michael Gottschaldt
DOI:10.1016/j.carres.2017.04.020
日期:2017.6
formula [Ru(bpy)2(L)]Cl2 was formed. Acidic cleavage of the d-glucose unit led to the first d-fructose conjugated metal complex viad-fructose C6 in literature. Additionally, pyta-modified d-fructose via C1 and the corresponding Ru complex were synthesized. All compounds were analyzed by Rf values, specific rotation, NMR, IR, UV/Vis and fluorescence spectroscopy, mass spectrometry and elemental analysis